2OXS

Crystal Structure of the trypsin complex with benzamidine at high temperature (35 C)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	308	PEG 9000, 2,5mM benzamidine, ammonium sulphate. CaCl2, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 308K

Crystal Properties
Matthews coefficient	Solvent content
2.31	46.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.756	α = 90
b = 58.484	β = 90
c = 67.406	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	300	IMAGE PLATE	MARRESEARCH	mirror	2006-10-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.3	50	100	0.26	42.2			51449			13.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.32	1.34	100		0.46	4.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2AYW	1.32	44.19	51449	50390	1059	99.81	0.156	0.15539	0.15533	0.15814	RANDOM	11.288

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.1			-0.07		-0.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.266
r_dihedral_angle_3_deg	17.299
r_dihedral_angle_4_deg	16.238
r_dihedral_angle_1_deg	6.147
r_scangle_it	3.334
r_angle_other_deg	2.79
r_scbond_it	2.371
r_mcangle_it	1.563
r_angle_refined_deg	1.522
r_mcbond_it	1.042
r_nbd_refined	0.398
r_symmetry_vdw_refined	0.269
r_symmetry_vdw_other	0.23
r_nbd_other	0.212
r_mcbond_other	0.21
r_nbtor_refined	0.178
r_xyhbond_nbd_refined	0.15
r_metal_ion_refined	0.138
r_symmetry_hbond_refined	0.136
r_nbtor_other	0.095
r_chiral_restr	0.093
r_bond_other_d	0.013
r_bond_refined_d	0.01
r_gen_planes_refined	0.005
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1628
Nucleic Acid Atoms
Solvent Atoms	235
Heterogen Atoms	15

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
AUTOMAR	data reduction
SCALEPACK	data scaling
AMoRE	phasing